Concerns with family smokers & my infant while on vacation

I remember back in 1991 my ex and I lived next door to her grandmother. We were celebrating my son's first birthday. My ex's grandmother just came right on it the front door with a lit cigarette. I promptly told her we didn't smoke and didn't want it around the baby and would she please finish it outside. She did, but from then on, I was downright hated, loathed and despised by that whole family, because I wasn't "respectful" and just let "granny" smoke where she damn well wanted. My own father smoked, but he would not come in the house until he had been finished for a little while. Some people just have zero upbringing.